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Hills & Canyons ADU Builder.

We design, permit, and build accessory dwelling units across Greater Los Angeles — detached backyard ADUs, attached additions, garage conversions, and JADUs. One team, one number to call, from the first feasibility walk through the final LADBS inspection.

Hill parcels add the Baseline Hillside Ordinance, geotech, and (along the ridgeline) the Mulholland Scenic Parkway Specific Plan to every permit package. The ADU itself is still ministerial, but plan-check takes longer because the structural, grading, and haul-route sheets are heavier than a flat-lot project.

Hills & Canyons cost band — 2026

$220 – $290 / sqft installed

Lot access, slab condition, panel upgrade, and finish level move the number most. Pre-approved plans trim 5–10%.

Hills & Canyons permit clock

12–18 weeks ministerial

Plan on 3–5 months for design + LADBS permit, then 4–6 months on-site for an 800–1,000 sqft detached ADU.

Scope — start to keys.

  • Site walk, feasibility note, and zoning / LAR1 / RD overlay check
  • Full architectural plan set, structural, MEP, Title 24 energy
  • LADBS or local-city permit submittal and back-and-forth
  • Foundation, framing, MEP rough, finishes, landscape tie-in
  • Final inspection, certificate of occupancy, and warranty

What changes about the permit here.

  1. BHO caps height to ~33 ft and limits grading cuts based on lot slope.
  2. Soils / geotech report required on any slope >10%.
  3. Hillside Construction Regulation permits gate haul-route hours and truck size.
  4. Beverly Hills + Bel-Air HOA / R1 design review runs parallel to building permit.

What moves the Hills & Canyons number.

  • Slope-driven foundation work commonly $80–250k above flat-lot equivalent.
  • Crane / pump days run 2–4× a Valley job — narrow streets and switchbacks.
  • Caissons on steep slopes can hit $1,500–4,000 per linear foot of depth.
  • Beverly Hills design review pushes cladding budgets up sharply.

In short.

How much does an ADU cost in Los Angeles in 2026?
Most detached LA ADUs land between $300K and $500K all-in. Garage conversions typically run $160K–$260K. We hand over a one-page feasibility note with a real number before any contract.
Do you handle LADBS permits?
Yes — full plan set, structural calcs, Title 24 energy compliance, and the LADBS back-and-forth so the homeowner only signs at the milestones.
Can I build an ADU in a hillside zone?
Usually yes, but Hillside Ordinance grading and access rules add design time. We've built in Silver Lake, Mt. Washington, Hollywood Hills, and the Palisades — geotech and shoring are part of the workflow.
Does the Baseline Hillside Ordinance kill my ADU?
Almost never. State ADU law overrides local FAR limits up to 800 sqft, and many hillside lots can fit a full 1,200 sqft attached ADU even under BHO.
How much does hillside geotech add?
Plan on $8–25k for the report itself. The downstream cost — caissons, retaining walls, deeper foundations — is where the real budget impact lives.
Do you actually do adu builder in Hills & Canyons?
Yes — Hills & Canyons is an active service area under our Los Angeles studio. See the city hub on the Hills & Canyons area page for permit and zoning context.
How does Hills & Canyons adu builder compare to the rest of Los Angeles?
Permit clock, fee schedule, and inspection load vary city-to-city. The Los Angeles adu builder page benchmarks the region; the California permit directory has the per-jurisdiction detail.
What does Hills & Canyons adu builder look like at the statewide pillar level?
The full statewide pillar lives at California ADU Builder — philosophy, materials, hidden costs, week-by-week schedule. Sub-components branch out from there.
Where do I see real adu builder cost data for Hills & Canyons?
The 2026 California cost report publishes per-city ranges; the ADU cost calculatorhandles ADU-specific bands in two minutes.
How do I get a real Hills & Canyons adu builder quote without a generic ballpark?
Bring a lot address and a scope sketch to a discovery call. We pull the Hills & Canyons parcel record, cross-check Los Angeles permit fees in the California permit directory, then quote off real conditions — never a square-foot multiplier.
What permit does Hills & Canyons require for adu builder in 2026?
Most adu builder scopes in Hills & Canyons are ministerial under state law, but the building department still sets plan-check timing, fees, and inspection sequence. The permit directory has the latest Hills & Canyons portal and fee schedule; recent clock drift is logged on the field journal.
Who runs the Hills & Canyons adu builder job day-to-day?
A single project manager from the LA studio owns the schedule, the change-order log, and every city interaction. The Hills & Canyons area hub shows the team we deploy locally and links to the full five-phase design-build process.
How does Hills & Canyons adu builder interact with neighboring cities' codes?
Los Angeles cities adopt the California Residential Code on staggered cycles —Hills & Canyons can be ahead or behind a neighbor on energy, fire, or stormwater. The permit directory flags those differences per jurisdiction; the Hills & Canyons area hub drills into Hills & Canyons specifically.
Are Hills & Canyons adu builder costs higher or lower than the Los Angeles median?
It varies by scope tier. Per-city ranges are published in the 2026 California cost report; for ADU and ADU-adjacent scopes the ADU cost calculator narrows the band in two minutes.
What financing options do Hills & Canyons owners typically use for adu builder?
HELOC, cash-out refi, construction-to-perm, and a growing share of state-backed ADU programs. Definitions live in the construction glossary; we walk the trade-offs during the discovery call.
How long does a Hills & Canyons adu builder project actually take door-to-door?
Design + permit + construction together — most adu builder scopes in Hills & Canyons run 9–16 months. The week-by-week milestone map is on the process page; real-world clock variances show up on the field journal.
Where can I see past Hills & Canyons or Los Angeles adu builder builds you've completed?
Recent California work is catalogued on the projects index with city, scope, and duration metadata. The Hills & Canyons area hub surfaces the nearest comparable jobs.
Will Hills & Canyons adu builder affect my property assessment?
New conditioned square footage is reassessed; like-for-like replacement usually is not. Prop 13 protects the existing assessment. We cover the math during discovery — definitions live in the glossary.
What's the most common Hills & Canyons adu builder mistake we see?
Skipping the lot walk and quoting off a satellite image. Los Angeles lots have slope, easement, and setback surprises that don't show up online. The site walk catches them before the permit set is drawn.
Does Hills & Canyons adu builder qualify for any state ADU or remodel incentives?
California's ADU fee waivers and CalHFA ADU grant programs apply statewide, including Hills & Canyons. Program terms shift quarterly — current status is tracked on the field journal, definitions in the glossary.
What's the single fastest way to validate a Hills & Canyons adu builder idea this week?
Run the ADU cost calculator for a number, scan the Hills & Canyons area hub for permit context, then request a discovery call. Most owners go from idea to informed decision inside 10 days.

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Foreman's notebook · Hills & Canyons

What we know walking onto a Hills & Canyons lot

Field map · Hollywood Hills, Los Angeles, CA
Checking conditions…
From Mid-City yard
22 min
Jobs finished here
14
Build window
Late April–early November. Wet-weather grading bans hit hard.

Today's daylight window

Sunrise

5:52 AM

Golden hour

7:31 PM

Sunset

8:07 PM

Day length

14h 15m

Permit counter

LADBS — Metro Office

201 N Figueroa St, Los Angeles, CA 90012

Phone
(213) 482-0000

Hours
Mon–Fri 7:30am–4:30pm

Our typical wait: 12–16 weeks (HCR adds time)

Site
Steep + decomposed granite. Drilled piers on caissons; never spread footings on slope.

Crane / staging
Mini-crane + boom pump. Crane lifts need 72hr neighbor notice in HCR.

Crew spot
Bricks & Scones — Larchmont

City dossier · the 20 things we track

Locals call it
The Hills
Architectural DNA
Hillside modern · post-and-beam · cantilevered glass
Our signature spec
Steel moment frame · charred cedar · Class A standing-seam
Fire hazard zone
VHFHSZ (very high)
Nearest fault
Hollywood Fault · 0.6 mi
Title 24 climate zone
Title 24 Zone 9
Median lot
7,800 sf
Typical setbacks
5ft side · 15ft rear · slope-adjusted
New 1BR ADU rents
$3,600–$4,400 /mo
Resale lift w/ ADU
+7–11%
Iconic landmark
Hollywood Sign · 2.2 mi
Street sweeping
Mon (limited routes)
Trash / dumpster day
Friday (LASAN)
Solar yield
1,750 kWh / kW · yr
Avg summer high
88°F
Avg winter low
48°F
Lots inside an HOA
3%
Nearest ER
Cedars-Sinai Medical Center
Jobsite radio
KCRW Morning Becomes Eclectic
Protected trees
Coast live oak · sycamore · all ridge-line trees
Crew lunch spot
Greenblatt's-style at Joan's on Third

10 things we already know about this area

  • HCR district covers nearly all of Hollywood Hills west — haul route required.
  • Most lots > 25% grade — caissons standard, not optional.
  • Mulholland Specific Plan view corridors get appealed if you go above the ridge.
  • VHFHSZ everywhere — Chapter 7A, ember-resistant vents, defensible space.
  • Driveway widths often 9ft — mini-crane mandatory.
  • Geotech reports run $8–15k and 4–6 weeks before drafting.
  • Septic systems on some streets — engineered alternative system if upgrading.
  • Beachwood Canyon Sign Overlay restricts roof reflectivity — matte finishes only.
  • Crane swings over a neighbor need their signed letter, not just notification.
  • Concrete trucks need a 12% grade limit — sometimes 2 trucks shuttle to a pump.

Material yards we call here

  • Anawalt Lumber — Hollywood · lumber
  • Robertson's Ready Mix (Burbank yard) · concrete
  • United Rentals — Hollywood · rental

Recent jobs

  • Lookout Mountain Ave · Hillside detached studio
    510sf · 30 weeks · 6 mo ago
  • Outpost Dr · Stacked JADU + view deck
    640sf · 26 weeks · 11 mo ago
"Hills jobs live or die on the geotech. We never quote until the report is in our hands."
— Field journal, Hills & Canyons
Local intelligence

28 things we track for every Hills & Canyons job

What changes when the lot is in Hills & Canyons

Same plans drawn three miles apart can cost $80k different. These are the local conditions, ordinances, soils, utilities, and crew realities that decide the number. We update this from our own jobs and the city counter.

Reg

Regulation & permits

Noise / construction hours
Mon–Sat 7a–8p · LAMC · hillside neighbors complain fast = HCRC enforcement
Historic overlay
Whitley Heights HPOZ · Outpost Estates · Hollywood Heights · Mills Act gold
Parking / dumpster permit
LADOT + flagger required on >12% grade · $400+ daily traffic plan · helicopter for big steel
Demo diversion mandate
65% LAMC · hillside haul restrictions: dirt-only haul route bond required
School impact fees
LAUSD: $4.79/sf · BHUSD if in 90210: $4.79/sf + city add-on
Prop 13 reassessment
Major remodel >50% = potential full reassessment · keep one wall standing rule
Zoning trajectory
BMO/BHO caps massing · Methane zone in Hollywood foothills · HCR limits FAR
ADU pre-approved plans
Not viable on slopes >15% · custom geotech required · use Standard Plan only on flats
Site

Site & geology

Soil type
Modelo shale / Topanga sandstone — fractured, anisotropic · landslide-prone overlays
Water table
Variable — perched water on bedding planes · French drains mandatory
Foundation pier depth
14–28 ft caissons + grade beams · steel moment frame standard · geotech mandatory
Subsurface conflicts
Methane zones (Salt Lake oil field) · DOGGR check + venting on Hollywood foothills mandatory
Wildlife / habitat mitigation
P-22 mountain lion corridor (now retired) · raptor nests · oak/sycamore protection
Seasonal risks
Mudslides Dec–Mar · Santa Ana fire Sep–Jan (PSPS) · rain stops all grading
Street / delivery access
Single-lane hairpins · no semi-truck · 10-yd max dump truck · concrete via line-pump only
Airport / flight-path noise
BUR + LAX north contour · helicopter traffic (LAPD + tourist) constant
Util

Utilities & energy

Utility upgrade wait
LADWP 200A: 16–24 wk hillside · transformer access often needs helicopter ($18k)
Seismic retrofit history
~22% (most are post-1980 cantilevers, not soft-story) · hillside ordinance retro 2018+
NEM 3.0 / solar export
Solar OK but tree canopy reduces yield 30% · battery essential for PSPS
Pool permit reality
Engineered shell, geotech, 60-day permit cycle · infinity edge = +$80–140k
Crew

Culture & crew

Local salvage / reclaimed
Olde Good Things (Atwater), Pasadena Architectural Salvage, Big Daddy's Antiques
Color / palette rules
BHO: muted earth tones · no white reflective on ridgeline (BHO 12.21.A.17)
Theft risk on jobsite
Copper from estates · construction tools low (gated) · package theft high
Sub-contractor ecosystem
Strong: caisson, structural steel, sheer-pile · weak: budget framers won't bid
Tree protection fines
Protected tree: $25k+ + 4:1 box · oak fines aggressively prosecuted · ISA arborist on file
Jobsite language
Spanish + English · Russian on some Beverly Hills jobs · architect-driven communication
$

Money & momentum

Top cost surprises
Geotech + soils ($18–35k) · caissons ($45–120k) · haul-route bond ($25k+)
Permit boom indicator
Hillside permit cycle 32–48 wk · geotech + grading drives carrying cost

Sources: city counter notes, our own permit logs, CalRecycle, CA Title 24, DOGGR, CAL FIRE FHSZ, USGS Q-Fault, PG&E / SCE / LADWP rate sheets, school district fee schedules. Last reviewed by our PMs this quarter.

LA HILLS · ADU BUILDEROff-site · Leo replies tonight

Adu Builder in La Hills: priced off our last three jobs nearby.

  • LA permit office tricks included — no surprises
  • Soft-soils, hillside, and coastal overlays handled
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